Home / 20,680.14-28,548.27-13,232.46

Finding the Fourth Proportional to 20,680.14, 28,548.27 and 13,232.46

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Solution

The fourth proportional to 20,680.14, 28,548.27 and 13,232.46 is: 18,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.14 : 28,548.27 = 13,232.46 : x
  2. Step 2: Convert to fraction form
    20,680.14/28,548.27 = 13,232.46/x
  3. Step 3: Cross multiply
    20,680.14x = 28,548.27 × 13,232.46
  4. Step 4: Simplify right side
    20,680.14x = 377,763,840.84
  5. Step 5: Solve for x
    x = 377,763,840.84/20,680.14
  6. Step 6: Final answer
    x = 18,266.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.